View sn74abt16827dggr datasheet:

SN74ABT16827DGGR IL08 C-MOS 20-BIT BUFFERS/DRIVERS WTIH 3-STATE OUTPUTS —TOP VIEW— INPUTS OUTPUT 1 IN 1 56 1 IN A Y OE1 OE2 OE1 OE2 0 0 0 0 1Y1 OUT 2 55 1A1 IN 0 0 1 1 1Y2 OUT 3 54 1A2 IN 1 x x HI-Z x 1 x HI-Z 4 GND GND 53 0 : LOW LEVEL 1Y3 OUT 5 52 1A3 IN 1 : HIGH LEVEL 1Y4 OUT 6 51 1A4 IN x : DON’T CARE HI-Z : HIGH IMPEDANCE 7 VDD VDD 50 1Y5 OUT 8 49 1A5 IN INPUT 1Y6 OUT 9 48 1A6 IN 1A1 - 1A10, 2A1 - 2A10 : DATA 1Y7 OUT 10 47 1A7 IN 1 , 1 , : OUTPUT ENABLE OE1 OE2 2 , 2 OE1 OE2 11 GND GND 46 1Y8 OUT 12 45 1A8 IN OUTPUT 1Y1 - 1Y10, 2Y1 - 2Y10 : DATA 1Y9 OUT 13 44 1A9 IN 1Y10 OUT 14 43 1A10 IN 1 1OE1 2Y1 OUT 15 42 2A1 IN 56 1OE2 2Y2 OUT 16 41 2A2 IN 2Y3 OUT 17 40 2A3 IN 55 2 1A1 1Y1 18 GND GND 39 2Y4 OUT 19 38